Messages in this thread | | | Date | Thu, 1 Feb 2018 14:32:45 +0800 | From | kbuild test robot <> | Subject | drivers/gpu/drm/bridge/lvds-encoder.c:77: undefined reference to `devm_drm_panel_bridge_add' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 255442c93843f52b6891b21d0b485bf2c97f93c3 commit: dbb58bfd9ae6c885b2ca001a9a5ab8b881fb4ba9 drm/bridge: Fix lvds-encoder since the panel_bridge rework. date: 9 weeks ago config: x86_64-randconfig-s1-02011301 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: git checkout dbb58bfd9ae6c885b2ca001a9a5ab8b881fb4ba9 # save the attached .config to linux build tree make ARCH=x86_64
All errors (new ones prefixed by >>):
drivers/gpu/drm/bridge/lvds-encoder.o: In function `lvds_encoder_probe': >> drivers/gpu/drm/bridge/lvds-encoder.c:77: undefined reference to `devm_drm_panel_bridge_add'
vim +77 drivers/gpu/drm/bridge/lvds-encoder.c
34 35 static int lvds_encoder_probe(struct platform_device *pdev) 36 { 37 struct device_node *port; 38 struct device_node *endpoint; 39 struct device_node *panel_node; 40 struct drm_panel *panel; 41 struct lvds_encoder *lvds_encoder; 42 43 lvds_encoder = devm_kzalloc(&pdev->dev, sizeof(*lvds_encoder), 44 GFP_KERNEL); 45 if (!lvds_encoder) 46 return -ENOMEM; 47 48 /* Locate the panel DT node. */ 49 port = of_graph_get_port_by_id(pdev->dev.of_node, 1); 50 if (!port) { 51 dev_dbg(&pdev->dev, "port 1 not found\n"); 52 return -ENXIO; 53 } 54 55 endpoint = of_get_child_by_name(port, "endpoint"); 56 of_node_put(port); 57 if (!endpoint) { 58 dev_dbg(&pdev->dev, "no endpoint for port 1\n"); 59 return -ENXIO; 60 } 61 62 panel_node = of_graph_get_remote_port_parent(endpoint); 63 of_node_put(endpoint); 64 if (!panel_node) { 65 dev_dbg(&pdev->dev, "no remote endpoint for port 1\n"); 66 return -ENXIO; 67 } 68 69 panel = of_drm_find_panel(panel_node); 70 of_node_put(panel_node); 71 if (!panel) { 72 dev_dbg(&pdev->dev, "panel not found, deferring probe\n"); 73 return -EPROBE_DEFER; 74 } 75 76 lvds_encoder->panel_bridge = > 77 devm_drm_panel_bridge_add(&pdev->dev, 78 panel, DRM_MODE_CONNECTOR_LVDS); 79 if (IS_ERR(lvds_encoder->panel_bridge)) 80 return PTR_ERR(lvds_encoder->panel_bridge); 81 82 /* The panel_bridge bridge is attached to the panel's of_node, 83 * but we need a bridge attached to our of_node for our user 84 * to look up. 85 */ 86 lvds_encoder->bridge.of_node = pdev->dev.of_node; 87 lvds_encoder->bridge.funcs = &funcs; 88 drm_bridge_add(&lvds_encoder->bridge); 89 90 platform_set_drvdata(pdev, lvds_encoder); 91 92 return 0; 93 } 94
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